Document Detail

Vitamin D deficiency in general medical inpatients in summer and winter.
MedLine Citation:
PMID:  17535381     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: Vitamin D deficiency is common in various populations worldwide. Adverse effects of vitamin D deficiency are the development of bone disorders; however, other diseases such as multiple sclerosis, type 1 diabetes, rheumatoid arthritis and certain cancers have also been linked to vitamin D deficiency. The general medical inpatient population is a group at increased risk of vitamin D deficiency. These patients often have coexistent risk factors for its consequences. This study aims to document a point prevalence of vitamin D deficiency in this population. METHODS: Two cross-sectional audits of patients admitted to general medicine units were carried out--the first in mid-November at the end of winter and the second in mid-April and May at the end of summer. Information regarding patients' comorbidities, medication usage, previous falls and fractures was obtained and serum 25-hydroxyvitamin D, parathyroid hormone and calcium levels were measured. RESULTS: A total of 129 patients was studied (65 in winter and 64 in summer). Ninety-four patients (74%) had 25-hydroxyvitamin D levels < or = 50 nmol/L. Seven patients had severe deficiency (levels < or = 12.5 nmol/L). Average vitamin D levels were lower at the end of winter (35 vs 43 nmol/L, P = 0.007). Of the 37 patients receiving vitamin D supplements, 20 (54%) had 25-hydroxyvitamin D levels < or = 50 nmol/L. CONCLUSION: Low vitamin D levels were common in this general medical inpatient population. The average vitamin D level was lower in the patient group tested in November following winter. Supplementation of vitamin D did not uniformly prevent deficiency.
S M Chatfield; C Brand; P R Ebeling; D M Russell
Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Internal medicine journal     Volume:  37     ISSN:  1445-5994     ISO Abbreviation:  Intern Med J     Publication Date:  2007 Jun 
Date Detail:
Created Date:  2007-05-30     Completed Date:  2007-08-27     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101092952     Medline TA:  Intern Med J     Country:  Australia    
Other Details:
Languages:  eng     Pagination:  377-82     Citation Subset:  IM    
Department of General Medicine, Royal Melbourne Hospital, Melbourne, Victoria, Australia.
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MeSH Terms
Aged, 80 and over
Cross-Sectional Studies
Family Practice*
Middle Aged
Vitamin D Deficiency / diagnosis,  epidemiology*

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